Among the following compounds I-IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii)…
Haloalkanes & Haloarenes · Class 12 · JEE Main Previous Year Question
Among the following compounds I-IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil. (iii) ?
- a
II
- b✓
IV
- c
III
- d
I
IV
Key Points:
- Benzylic C-I bond: reactive toward NaOH (SN2)
- Aryl C-Cl bond: inert toward NaOH under normal conditions
- = yellow precipitate; = white; = pale yellow
- Only compound IV has a reactive (benzylic) C-I bond
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